Re: practicing with sextant on land
Got a sextant for Christmas. So have just learned Celestial navigation. Used three different books to learn. Best book I found was a book called Simple Celestial, by a CDR Chris Kreitlein (ret). Not a lot of theory (but enough), just logical , step by step instructions on sight reduction, for all sights. The reason I'm bringing it up is that it is not a widely distributed book. You have to order it from the guys website ( it's about $12), yet it is the book that made everything clear to this not so smart guy. I have no connection to the guy, I discovered him on youtube while trying to figure it all out. Just thought I'd mention it, as I found it to be an invaluable resource.
To be honest I haven't taken a sight yet, it's to bloody cold to mess around outside in Ontario. I'll have to wait for spring.
by the way the book had the best sight forms I came across. You can download them free from his website.